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Lewis County, MO flood insurance claims history
143 claims under the National Flood Insurance Program on file for flood losses in Lewis County since 1979, with $3.5M paid. The worst year was 2008 with 45 claims. Lewis County ranks #40 of 107 in Missouri by claim count.
What the Lewis County record shows
- 36% of claims with a zone on file came from outside FEMA's high-risk zones, well above the 14% across Missouri.
- 16% of all claims trace to one event, Midwest Flooding (1993), which paid $357K here.
- 2008 alone produced 31% of the claims on file.
- Claims came in just 1 of the 10 years to 2026.
- 2016–2025 brought 14 claims, 82% fewer than 2006–2015 (78). Counts also move with how many buildings held a policy.
- The average paid claim is $29K, above the Missouri average of $23K (nominal dollars).
- ZIP codes 63448, 63435 and 63438 hold 98% of claims, out of 5 ZIP codes with any.
- May through July accounts for 85% of losses.
- Marion County has the most claims among its neighbors (535, against 143 here).
NFIP claims
143
1979–2019
Total paid
$3.5M
nominal dollars, not inflation-adjusted
Claims paid
85%
122 received a payment
Average payout
$29K
per paid claim
Last 10 years
14
claims 2017 – 2026
Most recent loss
2019-06-06
data as of 2026-09-08
Look up your ZIP code
Filter by ZIP, year or flood zone to see which floods the claims came from. For a street address, run the printable flood check.
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Flood claims by year
Peak: 45 claims in 2008
Biggest flood events in Lewis County
| Flood event (FEMA name) | Claims | Paid | Avg / claim | Year |
|---|---|---|---|---|
| Midwest Flooding | 23 | $357K | $16K | 1993 |
| Late spring storms | 20 | $189K | $9K | 2011 |
| Flooding (FEMA general label) | 4 | $13K | $3K | 1986 |
33% of claims here fall under these 3 entries.How to read these labels.
Federal disaster declarations for Lewis County
Lewis County has been a designated area in 27 declarations since 1965, 25 of them for flooding, storms or hurricanes. Since 2024 it has been included in 1: Severe Storms, Straight-Line Winds, Tornadoes, and Flooding (DR-4929-MO, 2026).
| Declared | FEMA number | Incident | Declared for | Dates of the incident | Aid unlocked here |
|---|---|---|---|---|---|
| 2026-08-03 | DR-4929-MO major disaster | Severe Storm | Severe Storms, Straight-Line Winds, Tornadoes, and Flooding | 2026-06-04 → 2026-06-18 | Public Assistance |
| 2020-03-26 | DR-4490-MO major disaster | Biological | COVID-19 Pandemic | 2020-01-20 → 2023-05-11 | Individual Assistance, Public Assistance, Hazard Mitigation |
| 2020-03-13 | EM-3482-MO emergency | Biological | COVID-19 | 2020-01-20 → 2023-05-11 | Public Assistance |
| 2019-07-09 | DR-4451-MO major disaster | Severe Storm | Severe Storms, Tornadoes, and Flooding | 2019-04-29 → 2019-07-05 | Individual Assistance, Public Assistance, Hazard Mitigation |
| 2016-01-02 | EM-3374-MO emergency | Flood | Severe Storms, Tornadoes, Straight-Line Winds, and Flooding | 2015-12-22 → 2016-01-09 | Public Assistance |
| 2015-08-07 | DR-4238-MO major disaster | Severe Storm | Severe Storms, Tornadoes, Straight-Line Winds, and Flooding | 2015-05-15 → 2015-07-27 | Public Assistance, Hazard Mitigation |
| 2014-10-31 | DR-4200-MO major disaster | Severe Storm | Severe Storms, Tornadoes, Straight-Line Winds, and Flooding | 2014-09-09 → 2014-09-10 | Public Assistance, Hazard Mitigation |
| 2013-07-18 | DR-4130-MO major disaster | Severe Storm | Severe Storms, Straight-Line Winds, Tornadoes, and Flooding | 2013-05-29 → 2013-06-10 | Public Assistance, Hazard Mitigation |
| 2011-06-30 | EM-3325-MO emergency | Flood | Flooding | 2011-06-01 → 2011-08-01 | Public Assistance |
| 2011-03-23 | DR-1961-MO major disaster | Severe Storm | Severe Winter Storm and Snowstorm | 2011-01-31 → 2011-02-05 | Public Assistance, Hazard Mitigation |
| 2011-02-03 | EM-3317-MO emergency | Severe Storm | Severe Winter Storm | 2011-01-31 → 2011-02-05 | Public Assistance |
| 2010-08-17 | DR-1934-MO major disaster | Severe Storm | Severe Storms, Flooding, and Tornadoes | 2010-06-12 → 2010-07-31 | Public Assistance, Hazard Mitigation |
| 2009-06-19 | DR-1847-MO major disaster | Severe Storm | Severe Storms, Tornadoes, and Flooding | 2009-05-08 → 2009-05-16 | Public Assistance, Hazard Mitigation |
| 2009-01-30 | EM-3303-MO emergency | Severe Ice Storm | Severe Winter Storm | 2009-01-26 → 2009-01-28 | Public Assistance |
| 2008-11-13 | DR-1809-MO major disaster | Severe Storm | Severe Storms, Flooding, and a Tornado | 2008-09-11 → 2008-09-24 | Individual Assistance, Public Assistance, Hazard Mitigation |
| 2008-06-25 | DR-1773-MO major disaster | Severe Storm | Severe Storms and Flooding | 2008-06-01 → 2008-08-13 | Individual Assistance, Public Assistance, Hazard Mitigation |
| 2007-12-12 | EM-3281-MO emergency | Severe Ice Storm | Severe Winter Storms | 2007-12-08 → 2007-12-15 | Public Assistance |
| 2005-09-10 | EM-3232-MO emergency | Hurricane | Hurricane Katrina Evacuation | 2005-08-29 → 2005-10-01 | Public Assistance |
| 2003-05-06 | DR-1463-MO major disaster | Severe Storm | Severe Storms, Tornadoes, and Flooding | 2003-05-04 → 2003-05-30 | Individual Assistance, Public Assistance, Hazard Mitigation |
| 2002-05-06 | DR-1412-MO major disaster | Severe Storm | Severe Storms, Tornadoes and Flooding | 2002-04-24 → 2002-06-10 | Public Assistance, Hazard Mitigation |
| 2002-02-06 | DR-1403-MO major disaster | Severe Ice Storm | Severe Winter Ice Storm | 2002-01-29 → 2002-02-13 | Individual Assistance, Public Assistance, Hazard Mitigation |
| 1995-06-02 | DR-1054-MO major disaster | Severe Storm | Severe Storms, Tornadoes, Hail, Flooding | 1995-05-13 → 1995-06-23 | Individual Assistance |
| 1993-07-09 | DR-995-MO major disaster | Flood | Severe Storms & Flooding | 1993-06-10 → 1993-10-25 | Individual Assistance, Public Assistance |
| 1986-10-14 | DR-779-MO major disaster | Flood | Severe Storms & Flooding | 1986-09-18 → 1986-10-15 | Public Assistance |
| 1973-11-01 | DR-407-MO major disaster | Flood | Severe Storms & Flooding | 1973-11-01 | Individual Assistance, Public Assistance |
| 1973-04-19 | DR-372-MO major disaster | Severe Storm | Heavy Rains, Tornadoes & Flooding | 1973-04-19 | Individual Assistance, Public Assistance |
| 1965-06-14 | DR-198-MO major disaster | Severe Storm | Flooding | 1965-06-14 | Individual Assistance, Public Assistance |
OpenFEMA data through 2026-11-02; only declarations naming Lewis County itself are listed. 11 of these 27 opened Individual Assistance here. What a declaration does and does not pay for.
Flood zones in Lewis County: which ones the claims came from
High-risk A zones: 87 (61%)Coastal high-risk V zones: 0 (0%)Moderate / low-risk zones (B, C, X): 50 (35%)Zone not recorded: 6 (4%)
The most common zone on Lewis County claims is Zone A1–A30 — 55 of 137 claims with a zone on file (40%). 64% were in a high-risk Special Flood Hazard Area.
| Flood zone at rating | Claims | Share | Paid | Avg / claim |
|---|---|---|---|---|
| Zone A1–A30 · high risk, insurance required | 55 | 40% | $1.0M | $19K |
| Zone B · moderate / low risk | 26 | 19% | $223K | $9K |
| Zone AE · high risk, insurance required | 23 | 17% | $425K | $18K |
| Zone X · moderate / low risk | 22 | 16% | $344K | $16K |
| Zone A · high risk, insurance required | 9 | 7% | $1.4M | $157K |
| Zone C · moderate / low risk | 2 | 1% | $24K | $12K |
6 Lewis County claims have no zone recorded and are left out of the shares above. Which zones require flood insurance →
What caused the flooding
| Cause of damage (as coded by FEMA) | Claims | Share |
|---|---|---|
| Stream, river or lake overflow | 78 | 55% |
| Accumulation of rainfall or snowmelt | 52 | 36% |
| Other causes | 7 | 5% |
| Tidal water overflow (storm surge) | 4 | 3% |
| Not recorded | 2 | 1% |
Flood claims by ZIP code in Lewis County
6 ZIP codes with at least one claim FEMA assigned to Lewis County.
| 63448 | 90 | $1.7M | 63% | 12 | 2019 |
| 63435 | 49 | $1.8M | 34% | 9 | 2019 |
| Not reported | 1 | $4K | 1% | 1 | 1986 |
| 63438 | 1 | $1K | 1% | 1 | 2010 |
| 63440 | 1 | $13K | 1% | 1 | 2008 |
| 63454 | 1 | $54K | 1% | 1 | 2015 |
When does Lewis County flood?
June accounts for the most flood losses (71 claims, 50%). Claims by month of loss:
| Month | Claims | Share |
|---|---|---|
| January | 0 | 0% |
| February | 1 | 1% |
| March | 0 | 0% |
| April | 13 | 9% |
| May | 27 | 19% |
| June | 71 | 50% |
| July | 24 | 17% |
| August | 3 | 2% |
| September | 0 | 0% |
| October | 4 | 3% |
| November | 0 | 0% |
| December | 0 | 0% |
Year-by-year detail
| Year of loss | Claims | Paid |
|---|---|---|
| 2019 | 14 | $345K |
| 2015 | 1 | $54K |
| 2014 | 3 | $6K |
| 2013 | 7 | $64K |
| 2011 | 20 | $189K |
| 2010 | 2 | $2K |
| 2008 | 45 | $2.4M |
| 2002 | 5 | $18K |
| 2001 | 9 | $73K |
| 1998 | 1 | $0 |
| 1996 | 1 | $326 |
| 1993 | 25 | $360K |
| 1991 | 1 | $2K |
| 1986 | 4 | $13K |
| 1985 | 1 | $0 |
| 1979 | 4 | $8K |
Neighboring counties
| Neighbor | Claims | Paid | Outside high-risk |
|---|---|---|---|
| Lewis County (this page) | 143 | $3.5M | 36% |
| Marion County | 535 | $11.2M | 22% |
| Adams County, IL | 374 | $13.7M | 10% |
| Hancock County, IL | 288 | $5.9M | 11% |
| Clark County | 106 | $7.6M | 5% |
| Knox County | 4 | $1.1M | 50% |
| Shelby County | 2 | $81K | 0% |
All 107 Missouri counties → · County and ZIP rankings →
Common questions about flooding in Lewis County
- Has Lewis County flooded recently?
- The most recent flood loss with an insurance claim on file was on 2019-06-06, in FEMA data through 2026-09-08. Claims were filed in 1 of the 10 years to 2026 (14 claims).
- Has Lewis County had a FEMA disaster declaration?
- Yes — Lewis County has been named a designated area in 27 federal disaster declarations since 1965. The most recent is Severe Storms, Straight-Line Winds, Tornadoes, and Flooding (DR-4929-MO, declared 2026-08-03). Since 2024 there have been 1. See the full list with dates and aid programs →
- What flood zone is Lewis County in?
- No single zone covers a whole county. Across 137 Lewis County claims with a zone on file, the most common was Zone A1–A30 (40%), and 64% were in a high-risk Special Flood Hazard Area. For one address, use the flood check.
Look up another place
Source: FEMA NFIP Redacted Claims, FIPS 29111, data as of 2026-09-08. Insured buildings only, never a specific property: see how to check a house and the limits of this data.